The direction that a river flows is called the flow or the drainages. Water generally flows downhill or from a higher elevation to a lower one.
It is mainly known as it's course.
River
The path of a projectile is called its trajectory. It is the curved path that an object follows when it is thrown or shot into the air.
The nation gambia follows a river called the Gambia River.
The river follows a sinous path through the forest.
No, the St. Lawrence River is not man made. But the St. Lawrence Seaway that follows part of the river's path is.
It's meander.
Orbit
The path is called an orbit.
Its called an orbit.
traction
Orbit